Commit cd755085 authored by Binh Nguyen's avatar Binh Nguyen

Uploaded to proquest

parent 9ff781a5
......@@ -146,7 +146,7 @@ on 1\% of control messages;
% \subsection{Results}
%\vskip 4pt
$\bullet$ \noindent\textbf{Latency.}
Figures~\ref{fig:latency-procedure-attach-sr} shows latency of entire Attach (top) and Service Request (bottom) procedures with different ZK configurations running in DC.
Figure~\ref{fig:latency-procedure-attach-sr} shows latency of entire Attach (top) and Service Request (bottom) procedures with different ZK configurations running in DC.
The latency is broken down into EPC core network - the latency between EPC components (including ZK);
Network time - network round-trip time between eNodeB and Azure;
and Radio - latency to set up radio bearers on UE and eNodeB hardware.
......@@ -177,7 +177,7 @@ the latency overhead \echo{} introduced to each message exchanged between UE and
Attach (left part) and Service Request Procedure (right part).
The odd-numbered messages (1-Attach Request, 3-Authentication Response, 5-Security Mode Complete, 7-UE Information Response, 1-Service Request) are sent by the UE and are processed by \echo{}.
The even-numbered messages (2-Authentication Request, 4-Security Mode Command, 5-UE Information Request, 8-Attach Accept, 2-Context Setup Request) are sent by \echo{} and processed by the UE.
As show, this confirms radio setup and authentication processing on UE (msgs. 2-left,8,2-right) dominate total procedure latency.
As shown, this confirms radio setup and authentication processing on UE (msgs. 2-left,8,2-right) dominate total procedure latency.
Looking at \echo{} latency (i.e., msgs. 1-left, 3, 5, 7, 1-right) we can see a clear latency overhead trend among \echo{}-Disk,\echo{}-nFC and OpenEPC. Overall, using disk logging incurs the most latency overhead while using disk without force sync (Disk-nFC) incurs less latency. The overhead \echo{} introduced per message is noticeable (about 40\%) but the overall overhead is small.
%Because Disk-nFC has the same latency overhead with Ramdisk configuration while being more reliable,
%we will choose Disk-nFC as the configuration for \echo{} in the following evaluation.
......
......@@ -173,7 +173,7 @@
%%% College- and Department-level definitions:
\approvaldepartment {School of Computing}
\department {School of Computing}
\graduatedean {David Kieda}
\graduatedean {David B. Kieda}
\departmentchair {Ross Whitaker}
%%% The graduate student's committee members:
......
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